相关疑难解决方法(0)

如何在包名中单独添加单词？以下哪项是正确的？

1. com.stackoverflow.my_package (下划线)
2. com.stackoverflow.my-package (连字符)
3. com.stackoverflow.MyPackage (骆驼香烟盒)

什么是通用标准？

看到maven中的编译错误.检查并尝试了我从谷歌和堆栈*网站获得的所有变通办法.但我还是无法解决.

已安装的maven 3.3.3及其支持的java版本1.7.请注意我没有设置JAVA_HOME,M2和M2_HOME环境变量.但仍然走这条路.

Apache Maven 3.3.3 (7994120775791599e205a5524ec3e0dfe41d4a06; 2015-04-22T07:57:37-04:00)
Maven home: /usr/local/apache-maven-3.3.3
Java version: 1.7.0_85, vendor: Oracle Corporation
Java home: /usr/lib/jvm/java-1.7.0-openjdk-1.7.0.85.x86_64/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "2.6.32-573.3.1.el6.x86_64", arch: "amd64", family: "unix"

错误是

[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] /home/sdiuser/Build-Release/hg-artifactid/src/main/java/hg-groupid/App.java:[1,11] ';' expected
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.007 s
[INFO] Finished at: 2015-08-31T02:43:32-04:00
[INFO] Final Memory: 9M/158M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal …